It is very difficult to add or remove electrons from an atom that has eight electrons in its outer shell.
True
False

Answer:

Explanation:

Geological substratum refers to the solid rock or layer of Earth's crust that lies beneath the soil, sediment, or other surface materials.

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Weather service maps are used by meteorologists to help create weather forecasts.

This is an individual which specializes in the use of scientific methods in predicting Earth's atmospheric phenomena such as weather.

Tools such as weather service maps are used by them to help create weather forecasts.

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A major cause of aneuploidy is “chromosome instability.

Aneuploidy impairs the karyotype and thus the species, independent of mutation because it buys highly conserved teams of proteins that segregate, synthesize and repair chromosomes. Likewise, it destabilizes genes.

We conclude that the transition of stable diploid to rocky aneuploid cell species is the primary cause of preneoplastic and neoplastic genomic insecurity and of cancer and that mutations are secondary.

So we can conclude that Aneuploidy: Extra or absent chromosomes. Changes in a cell's genetic material are called mutations.

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Answer:

NH3

Explanation:

Ammonia is a chemical compound formed by the chemical combination of Nitrogen and Hydrogen atoms. One Nitrogen and three hydrogen atoms are joined together by a covalent bond to form the ammonia compound. Hence, ammonia has a chemical formula of NH3.

Therefore, the molecule shown in the image, which is identified as ammonia has a chemical formula: NH3. Ammonia is a gaseous substance at room temperature and gives a pungent odor when inhaled.

The plants exhibit pharmacological significance due to their alkaloid content, which can have potent effects on the nervous system and various bodily functions.

Family Solanaceae, commonly known as the nightshade family, is a diverse group of flowering plants characterized by several key features. The floral formula of Solanaceae is typically represented as (5) K (5) C(5) A(2+2) G(2), indicating five sepals, five petals, five fused stamens (with two longer and three shorter ones), and a superior ovary composed of two fused carpels. The floral diagram represents a radial symmetry with overlapping sepals and petals, and the stamens and pistil positioned in the center.

Solanaceae encompasses many medicinally important plant species. Two notable examples are:

Atropa belladonna: Also known as deadly nightshade, Atropa belladonna contains alkaloids such as atropine and scopolamine, which have various medical uses. These compounds have anticholinergic properties and are used in medicine to dilate pupils, treat gastrointestinal disorders, and relieve bronchial spasms.

Datura stramonium: Commonly called jimsonweed or thorn apple, Datura stramonium contains alkaloids like scopolamine and hyoscyamine. It is used for its antispasmodic and bronchodilatory properties and has been employed in traditional medicine to relieve asthma symptoms and treat skin conditions.

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Answer:

A thermos keeps cold things cold in the same way. It doesn't contain some kind of cooling device. The same vacuum that keeps hot things hot keeps cold things cold. Heat that might otherwise transfer to the cold contents of the thermos is prevented from reaching it because of the vacuum between the thermos walls.

Today's thermoses are constructed much more sturdily than those in the past. The first thermoses featured metal exteriors with glass interior walls. These thermoses often ended up getting broken when accidentally dropped.

Where the water table is 100 metres below the surface is the best place to look for groundwater.

Answer: Five feet is the right response. The top layer of porous material is referred to as the unsaturated zone; this is the layer that is rarely filled with water unless it has recently rained.

Aquifers are the source of the majority of groundwater, including a sizeable portion of our drinking water. A well must be made by boring a hole that extends to the aquifer in order to get this water. Aquifers can discharge naturally at springs and in wetlands in addition to at man-made locations like wells.

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Answer:

B

Explanation:

Answer:

can you please answer jahmarlon adu

Explanation:

please i will fail if you dont

The incorrect statement according to the question is “Active transport requires a cell's energy” option (a)  is correct.

Active transport is a cellular process that moves substances against their concentration gradients, from areas of lower to higher concentration. This movement of solutes against the concentration gradient necessitates energy expenditure by the cell. Active transport often involves the use of carrier proteins or pumps embedded in the cell membrane, which undergo conformational changes to transport substances across the membrane.

This energy is primarily provided by ATP hydrolysis, a process that releases energy from ATP molecules. In contrast, passive transport processes, like diffusion and facilitated diffusion, do not require energy expenditure and move substances along their concentration gradients. Thus, active transport distinctly relies on the cell's energy to function, option (a) is correct.

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Cells tolerate higher rates of error in RNA synthesis because many copies of that RNA will be made, and only some of them have errors, which means that a high number of normal copies are also made, being enough to overcome and correct the problem. Another point is that DNA molecules are temporarily inherited. When it comes to errors in DNA synthesis, the mutation can be permanent if it`s not corrected until the next cell division, which makes errors in DNA synthesis more dangerous and with more consequences than in RNA synthesis, leading the cell to tolarate only a lower rate of errors.

Answer:

Explanation:

Image result for Morphological for hampshire swine

Hampshire hogs are black with a white belt. They have erect ears. The belt is a strip of white across the shoulders that covers the front legs around the body. The Hampshire, which is a heavily muscled, lean meat breed, is the fourth most recorded breed of the pigs in the United States.

In the stomach, proteins are broken down into smaller molecules by hydrochloric acid and an enzyme called pepsin. The hydrochloric acid creates an acidic environment in the stomach, which helps to denature the proteins and make them more accessible to the pepsin enzyme. Pepsin then breaks down the proteins into smaller peptides and amino acids, which can be absorbed into the bloodstream through the small intestine.

Answer: A

Explanation: human error

The study of the gene is called genetics.

The correct answer to the question is option A Does the process lead to false convictions of individuals.

The DNA of any person can get very easily placed in a crime scene which could hinder the investigation and can lead to a false conviction.

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Answer:

Explanation:

where are the choices at?

There are four main types of macromolecules found in living organisms: carbohydrates, lipids, proteins, and nucleic acids. Each macromolecule has its own unique function in the body.

Carbohydrates: Carbohydrates are molecules made up of carbon, hydrogen, and oxygen atoms, and they are a primary source of energy for the body. They provide quick energy to cells and are stored in the form of glycogen in the liver and muscles.

Lipids: Lipids are molecules made up of carbon, hydrogen, and oxygen atoms, and they are insoluble in water. They serve as a source of energy, a storage form of energy, and as a component of cell membranes.

Proteins: Proteins are large molecules made up of amino acids, and they have a wide range of functions in the body. Some proteins serve as enzymes, which catalyze chemical reactions in the body.

Nucleic acids: Nucleic acids are molecules made up of nucleotides, and they carry genetic information in the form of DNA and RNA. DNA is found in the nucleus of cells and contains the genetic code that determines an organism's traits.

Therefore,

Macromolecule Monomers (if applicable) Functions

Carbohydrates Monosaccharides Energy source, structural component

Proteins Amino acids Enzymes, structural components, hormones, defense

Lipids None Energy storage, membrane structure, signaling

Nucleic acids Nucleotides Genetic information storage and transmission

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Answer/explanation:

These cells are diverse since they utilize the same set of qualities in an unexpected way. So indeed in spite of the fact that each of our cells has the same 20,000 or so qualities, each cell can select which ones it needs to "turn on" and which ones it needs to keep "turned off".

Answer:

Elastic strength is the ability of a muscle to absorb, store, and release energy. The more energy the muscle releases, the faster and more powerful the movement. The fact that the heart pumps 2,500 gallons (9,450 liters) of blood daily makes it the muscle with the greatest elastic strength.

Explanation:

Answer:

dear user

the current produced by the x ray tube during an exposure is called anode or tube current

Answer:

An unconformity represents time during which no sediments were preserved in a region

Explanation:

there are three types of unconformities,disconformities, nonconformities, and angular unconformities.

Answer:

Explanation:

A hypothesis is like a guess you make before you do any research, and a theory is like a conclusion you draw after you see the data. A hypothesis can be right or wrong, but a theory is more likely to be right because it has evidence to back it up. A hypothesis can change if you find new data that contradicts it, but a theory is stable and consistent. For instance, the Cell Theory is a theory that tells us how living things work based on what we see under a microscope and in a lab, while a hypothesis might be an idea about why some animals have different kinds of skin, like fur or scales.

Sometimes, something can be both a theory and a hypothesis, depending on how much evidence it has and how many things it can explain. A theory is a hypothesis that has passed many tests and can explain a lot of things, and a hypothesis is a theory that has not done that yet. For example, the string theory is a hypothesis that tries to tell us what everything is made of, but we don't have any data to prove it. The cell theory, however, is a theory that tells us what living things are made of, and we have lots of data to prove it.

Answer:

Answer:

can be tested by many independent researchers - both

based on observations of natural phenomena - both

makes predictions about future events - both

a tentative statement used to guide scientific investigations - hypothesis

a well-established, highly reliable explanation - theory

Explanation:

Answer:

b

Explanation:

We can see here that in order to design a device, here is a guide:

Step 1: Understanding the requirements

Step 2: Brainstorming and sketching

A device refers to a physical or mechanical tool, instrument, or apparatus designed to perform a specific function or task. It is typically created with the purpose of achieving a particular objective or solving a problem.

Continuation of the steps:

Step 3: Selecting a design

Step 4: Building the prototype

Step 5: Making predictions

Step 6: Conducting experimental tests

Step 7: Evaluating the prototype

Step 8: Providing suggestions

Step 9: Understanding force and momentum principles

Step 10: Sketching the final design

Devices can vary in complexity and size, ranging from simple handheld tools to complex machinery.

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The law of superposition states that fossils found in the uppermost layers, i.e., layer A, are more recent than those found in the other layers, so option A is correct for the youngest fossil.

When the environment changes due to climatic changes, animals or plants remain under the rocks, leaving their imprints or hard parts of their bodies, which are later studied to learn about ancestors. The fossils that are present in the lowermost rock layers are the oldest, while the uppermost layer is the youngest as it is newly formed.

As a result, the law of superposition states that fossils found in the uppermost layers, i.e., layer A, are more recent than those found in the other layers, so option A is correct for the youngest fossil.

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Here, the hypothesis is "plants communicate with their neighbors in response to stress", dependent variable is the amount of the stress hormone in the plants, and the independent variable is the exposure to stress (applied 3 times a day for 10 days), standardized variables are plants used, duration of the stressor, amount of stress hormone. The control group is the plant that is not exposed to stressor.

Here, the control group is the group of plants that are not exposed to stress, and the control groups plants are experimented or tested with the other plants to get the result of the stress hormone on the plants.

Hence, here, the hypothesis is "plants communicate with their neighbors in response to stress", dependent variable is the amount of the stress hormone in the plants, and the independent variable is the exposure to stress (applied 3 times a day for 10 days), standardized variables are plants used, duration of the stressor, amount of stress hormone. The control group is the plant that is not exposed to stressor.

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Answer:

c

Explanation:

its c i took the test

The equation of photosynthesis is :
\(6CO_{2} + 6H_{2} O \frac{Sunlight}{\longrightarrow} C_{6} H_{12} O_{6} + 6O_{2}\)
Carbon dioxide + water + energy from light produce glucose and oxygen.

What is Photosynthesis ?

Photosynthesis is a process used by plants to convert light energy into chemical energy. It is the process of producing glucose from CO₂ (carbon dioxide) and water with the help of sunlight. So it is the process of food production by plants. Trees and plants use photosynthesis to feed themselves, grow, and develop.

To carry out photosynthesis, plants need chlorophyll, which is a green substance that they have in their leaves. It is in charge of absorbing a certain wavelength of light to carry out this process. In turn, chlorophyll is responsible for the characteristic green color of plants.

Photosynthesis takes place in plant cell membranes. There, photons, the particles that make up sunlight, break up the water molecules acquired by plants by releasing electrons and protons, other particles that in turn cause reactions that produce ATP and NADPH (two molecules that serve to store energy). Then, with the carbon dioxide that plants absorb from the atmosphere, they form carbohydrates in which energy is stored.

So, through photosynthesis, organisms with chlorophyll take in atmospheric or dissolved in water to form more complex molecules, such as carbohydrates, lipids, proteins, and nucleic acids. But during photosynthesis, glucose (C₆H₁₂O₆) is produced. The function of water in photosynthesis is to supply electrons for these redox reactions, i.e. water acts as a source of electrons. Since the water molecule is a very weak reducing agent, its electrons must be energized by the photons of sunlight. The oxygen released in photosynthesis comes from water and it is a waste product that will eventually be used by other living organisms to breathe.

The Equation for photosynthesis is 6CO₂ + 6H₂O + (energy) ⇒ C₆H₁₂O₆ + 6O₂

Carbon dioxide + water + energy from light produce glucose and oxygen.

Answer:

A Pothos is what the plant is called

Teresa could be able to solve problems creatively in C. To demonstrate the relationship between kinetic and potential energy, she should choose a personal example of each and design an experiment to demonstrate it.

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Complete question : Teresa wants to explore the relationship between kinetic energy and potential energy. How could she use innovative problem-solving?

A. Follow the instructions of her science teacher for performing an experiment about kinetic and potential energy.

B. Search the internet for ways to show the relationship between kinetic and potential energy.

C. Find an example of kinetic and potential energy in her own life and create an experiment to illustrate their relationship.

D. Study the relationship between kinetic and potential energy in her science textbook.

The genotype for the color of this pea plant seed is yy. Thus, option B is correct.

The genotype is similar to that of one parent. It assumes that non disjunction of chromosome did not happen and there was no fusion of gametes. The offspring cannot have exact genotype as one parent in sexual reproduction, In sexual reproduction, the offspring gets half of its chromosomes from each parent. This is why the chromosome number is reduced by half in the formation of gametes through the process of meiosis.

During the process of interphase that precedes the second division, there is no duplication of chromosomes, since each of them had already duplicated before meiosis 1.

Meiosis 2 has been considered as very similar to mitosis. During the metaphase 2, the chromosomes are located in the equatorial plate of each haploid cell. Chromatids, each with its centromere, separate and migrate to the cell poles during anaphase 2. They are non-identical following genetic recombination of meiosis 1.

Therefore, The genotype for the color of this pea plant seed is yy. Thus, option B is correct.

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